| 碳纳米管负载铂修饰玻碳电极用于电化学发光的研究及其对富马酸酮替芬的测定 |
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| 引用本文： | 李利军,高文燕,胡大春,蔡卓,李彦青. 碳纳米管负载铂修饰玻碳电极用于电化学发光的研究及其对富马酸酮替芬的测定[J]. 分析测试学报, 2010, 29(11). DOI: 10.3969/j.issn.1004-4957.2010.11.002 |
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| 作者姓名： | 李利军 高文燕 胡大春 蔡卓 李彦青 |
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| 作者单位： | 广西工学院生物与化学工程系;广西大学化学化工学院; |
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| 基金项目： | 国家自然科学基金资助项目，广西自然科学基金资助项目 |
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| 摘 要： | 在玻碳电极上制备了碳纳米管负载纳米铂修饰电极(Pt-MWCNTs/GCE)。考察了联吡啶钌和富马酸酮替芬在3个不同电极上的电化学及其发光行为,并对其进行了对比。结果表明,在Pt-MWCNTs/GCE上富马酸酮替芬对联吡啶钌的电化学发光强度有明显的增敏作用,其增敏效果约为MWCNTs/GCE电极的2倍,约为裸玻碳电极的3.5倍,据此,建立了一种Pt-MWCNTs/GCE电极上电化学发光法检测富马酸酮替芬的新方法。在优化实验条件下,富马酸酮替芬的浓度在1.0×10-7～1.0×10-4mol/L范围内与其相对发光强度呈线性关系,线性回归方程为I=48.805×106c+221.03(r=0.9969),检出限为2.4×10-9mol/L,连续平行测定1.0×10-5mol/L的富马酸酮替芬溶液5次,发光强度的RSD为3.3%。对样品进行回收率实验,回收率为99%～104%,RSD为2.1%。
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| 关 键 词： | 电致化学发光法 联吡啶钌 多壁碳纳米管 纳米铂 富马酸酮替芬 |
Electrochemiluminescence Method for Determination of Ketotifen Fumarate on Glassy Carbon Electrode Modified with Platinum-Multi-walled Carbon Nanotube Modified Electrode |
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| LI Li-jun,GAO Wen-yan,HU Da-chun,CAI Zhuo,LI Yan-qing. Electrochemiluminescence Method for Determination of Ketotifen Fumarate on Glassy Carbon Electrode Modified with Platinum-Multi-walled Carbon Nanotube Modified Electrode[J]. Journal of Instrumental Analysis, 2010, 29(11). DOI: 10.3969/j.issn.1004-4957.2010.11.002 |
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| Authors: | LI Li-jun GAO Wen-yan HU Da-chun CAI Zhuo LI Yan-qing |
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| Affiliation: | LI Li-jun1,GAO Wen-yan2,HU Da-chun1,CAI Zhuo2,LI Yan-qing1(1.Department of Biological and Chemical Engineering,Guangxi University of Technology,Liuzhou 545006,China,2.College of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China) |
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| Abstract: | A nano platinum-multi-walled carbon nanotube modified electrode was fabricated on the surface of bare glassy carbon electrode(Pt-MWCNTs/GCE).The electrochemical and Electrochemiluminescence(ECL) characteristics of Ru(bpy)2+3-ketotifen fumarate system at three different electrodes(Pt-MWCNTs/GCE,MWCNTs/GCE,GCE) were studied by ECL and cyclic voltammetric(CV) method,and the experimental conditions were optimized.The results showed that,in the presence of ketotifen fumarate,the ECL intensity of Ru(bpy)2+3 on th... |
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